Gliese 777
作者: pedro_jg
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Gliese 777, also known as HD 190360, is a binary system consisting of a G-type (yellow) subgiant and an M (red) dwarf, located 52 light-years away in the constellation of Cygnus. Three planets have been confirmed around the primary star: b is remarkable for being one of the most Jupiter-like planets known when it was announced in 2003, although it has a quite eccentric orbit, which takes it from 2.6 to 5.2 au around its star; and c, in a close 17-day orbit, is also notable for being one of the first hot Neptunes discovered (2005). In 2025, the third candidate planet was confirmed, and the orbital period of this planet is 88.695 days.
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